New research reported by ScienceDaily suggests a neurological basis for two of the most common long COVID complaints. Brain scans of affected patients show evidence that dopamine-releasing neurons may be damaged, which could explain why many people continue to experience profound tiredness and mental fogginess long after the initial infection.
Dopamine is a neurotransmitter involved in movement, motivation, and memory, so the pattern of symptoms aligns with the observed brain changes. The researchers propose that this damage may be a key driver of the persistent fatigue, low motivation, slowed movement, and memory difficulties seen in long COVID.
The findings are preliminary but open the door to new treatment approaches. If dopamine neuron damage is confirmed as a cause, therapies that target the brain's dopamine system could be explored as a way to relieve long COVID symptoms.